U.S. Marines conduct convoy operations in Sangin Valley. U.S. Marines from Lima Company, 3rd Battalion, 5th Marine Regiment, Regimental Combat Team 2 conduct convoy operations in Sangin Valley, Afghanistan, on Oct. 12, 2010. The mission of the 3rd Battalion is to conduct counterinsurgency operations in partnership with the International Security Assistance Force. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 003978-Q-HDN58-255.jpg Photo Gallery